Power scalable mid-infrared supercontinuum generation in ZBLAN fluoride fibers with up to 1.3 watts time-averaged power

Xia, Chenan; Kumar, Madhav; Cheng, Ming-Yuan; Hegde, Ravi S.; Islam, M. N.; Galvanauskas, A.; Winful, Herbert G.; Terry, Fred L.; Freeman, Mike J.; Poulain, Marcel; Mazé, G.

doi:10.1364/oe.15.000865

Cited by 67 publications

(43 citation statements)

References 5 publications

(10 reference statements)

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“…Supercontinuum sources combine all features of a broadband and spatially coherent source having a high intensity [7]. Mid-IR SC laser sources are currently based primarily on ZBLAN fibers covering the 1-4.75μm spectral range [8][9][10][11][12] and tellurite fibers covering the 1-5μm range [13,14]. Mid-IR SC sources have already been successfully applied in FTIR spectroscopy [15] and in hyperspectral imaging [16].…”

Section: Introductionmentioning

confidence: 99%

“…Mid-IR SC sources have already been successfully applied in FTIR spectroscopy [15] and in hyperspectral imaging [16]. A further advantage of fiber based laser sources is that the average power can be scaled up by increasing the pump power [9,17], or by increasing the pump repetition rate [8,9], with the current record being a 10.5W average power ZBLAN SC demonstrated by Xia et al [9].…”

Section: Introductionmentioning

confidence: 99%

“…Conceptually the SC concatenation approach was used before to generate a ZBLAN SC to about 4μm by using an erbium laser pumping a piece of silica fiber to generate a silica SC out to 2.2μm and then coupling this into a ZBLAN fiber [8,9,28]. Later this concatenated approach was improved by amplifying the silica SC using a section of core-pumped thulium amplifier, before coupling it into a ZBLAN [29,11,30] or a chalcogenide fiber [30].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thulium pumped mid-infrared 09–9μm supercontinuum generation in concatenated fluoride and chalcogenide glass fibers

Kubat¹,

Petersen²,

Møller³

et al. 2014

Opt. Express

131

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thulium pumped mid-infrared 09–9μm supercontinuum generation in concatenated fluoride and chalcogenide glass fibers

Kubat¹,

Petersen²,

Møller³

et al. 2014

Opt. Express

131

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“…Progress in this regard has been made using fluoride [Xia06,Xia07] While fluoride glass fibres have superior transmission beyond 2 µm compared to silica [Xia06,Xia07], they are non-resistant to moisture [Rav86] and as such, degrade in air over time [Okh12,Rav86]. In addition, poor compatibility with silica [Okh12] reduces their potential for realising fully fibre-integrated systems.…”

Section: Overview Of 2-5 µM Supercontinuum Generationmentioning

confidence: 99%

New materials, regimes and applications of fibre laser techonology

Zhang,

Ferrari,

Obraztsova

et al. 2014

International Photonics and OptoElectronics Meetings

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Nonlinear optics enables the manipulation of spectral and temporal characteristics of optical pulses interacting with a dielectric medium. Optical fibres, as a uniquely practical medium, provide an environment for effectively exploiting the nonlinear effects. This has facilitated the rapid growing interest in this field focused on the investigation of fibrebased sources incorporated with various novel saturable absorber devices for ultrashort pulse generation.This thesis reports a series of experiments exploring the ongoing research in the field of nonlinear optics, including the development of ultrafast mode-locked fibre sources and their applications in supercontinumm generation and third order parametric interactions in new carbon materials.Firstly, the integration of carbon-based materials with rare-earth doped media allows the demonstration of ultrafast mode-locked laser sources operating at wavelengths across the near-infrared region in a compact, low cost and environmentally robust scheme.Power scaling of such sources can be achieved by operating in the all-normal dispersion regime making use of a glass-substrate saturable absorber device that exhibits a higher damage threshold.Supercontinuum generation has been used as an effective method for spectral broadening. Pumping with a conceptually simple and reliable fibre-based system, a continuum covering from 2 to 3 µm is generated in a highly nonlinear GeO 2 fibre. This experiment demonstrates a robust and long-term stable source of radiation in an important band, coincident with a portion of the atmospheric transmission window.Finally, the demonstration of a simple and compact nano-material based dual-wavelength system shows the performance of such devices as a simultaneous saturable absorber and passive synchroniser. An experimental study of coherent frequency mixing at large frequency shifts in a graphene sample, pumped by a two-colour fibre-integrated source, proves the strong nonlinear response of this new carbon material. Woodward who not only provided company inside and outside of the lab, but were also happy to discuss and help all matters of my work and life in UK. In particular, I would like to thank Ed for providing me with much needed support, interesting discussions (especially on food and culture) and continued collaboration since I joined the group. Tim, for making couplers for the Tm-system. Thanks to Tim, Robbie (shared the same office over the past three years!), Ed, and Rob for endless support, spending hours and hours proof reading chapters of this thesis and cheering me up all the time. Thanks to the visitor from A*STAR (Singapore), Dr. Dora Hu (more like a sister), for proof reading and encouraging me to relax during the thesis writing.

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“…Mid-IR SC sources are also ideal for stand-off detection, where high power density over a broad spectral range is necessary to acquire information about an ensemble of potentially hazardous substances from a safe distance [3]. Some of the current SC lasers yielding the longest IR wavelengths are based on ZBLAN fibres covering the 1-4.75μm spectral range [4][5][6][7][8][9][10][11][12], and tellurite fibres covering the 1-4.5μm range [13].…”

Section: Introductionmentioning

confidence: 99%

Mid-infrared supercontinuum generation to 125μm in large NA chalcogenide step-index fibres pumped at 45μm

Kubat¹,

Agger²,

Møller³

et al. 2014

Opt. Express

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Abstract:We present numerical modeling of mid-infrared (MIR) supercontinuum generation (SCG) in dispersion-optimized chalcogenide (CHALC) step-index fibres (SIFs) with exceptionally high numerical aperture (NA) around one, pumped with mode-locked praseodymium-doped (Pr 3+ ) chalcogenide fibre lasers. The 4.5um laser is assumed to have a repetition rate of 4MHz with 50ps long pulses having a peak power of 4.7kW. A thorough fibre design optimisation was conducted using measured material dispersion (As-Se/Ge-As-Se) and measured fibre loss obtained in fabricated fibre of the same materials. The loss was below 2.5dB/m in the 3.3-9.4μm region. Fibres with 8 and 10μm core diameters generated an SC out to 12.5 and 10.7μm in less than 2m of fibre when pumped with 0.75 and 1kW, respectively. Larger core fibres with 20μm core diameters for potential higher power handling generated an SC out to 10.6μm for the highest NA considered but required pumping at 4.7kW as well as up to 3m of fibre to compensate for the lower nonlinearities. The amount of power converted into the 8-10μm band was 7.5 and 8.8mW for the 8 and 10μm fibres, respectively. For the 20μm core fibres up to 46mW was converted. References and links1. S. Dupont, C. Petersen, J. Thøgersen, C. Agger, O. Bang, and S. R. Keiding, "IR microscopy utilizing intense supercontinuum light source," Opt. Express 20, 4887-4892 (2012 picosecond pulsed, normal dispersion pumping for generating efficient broadband infrared supercontinuum in meter-length single-mode tellurite holey fiber with high Raman gain coefficient," J.

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Power scalable mid-infrared supercontinuum generation in ZBLAN fluoride fibers with up to 1.3 watts time-averaged power

Cited by 67 publications

References 5 publications

Thulium pumped mid-infrared 09–9μm supercontinuum generation in concatenated fluoride and chalcogenide glass fibers

Thulium pumped mid-infrared 09–9μm supercontinuum generation in concatenated fluoride and chalcogenide glass fibers

New materials, regimes and applications of fibre laser techonology

Mid-infrared supercontinuum generation to 125μm in large NA chalcogenide step-index fibres pumped at 45μm

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